lsass.exe problem

[majiK]

I cannot do anything with my computer. Every time I turn it on and operating system loads, I get the following message:

This system is shutting down. Please save all work in progress and log off. Any unsaved changes will be lost. This shutdown was initiated by NT AUTHORITY\SYSTEM.

It also displays time before shutdown and this:

The system process C:\WINDOWS\system32\lsass.exe terminated unexpectedly....

My computer shuts down after one minute or even 30 seconds. I cannot even take a screenshot. I am the only user of this PC and I swear, I do not turn it off myself. I think there is something strange with that lsass.exe. Any suggestions how to restore my system?

[anykey]

You are infected with eblaster. Try to use proper spyware remover or follow eblaster removal instructions

[hm]

I think it is the Sasser worm, not eBlaster.